Wash

Wash In

Wash In is when angle of incidence of wing tip is lower than wing root.

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Wash Out

Wash Out is when angle of incidence of wing tip is higher than wing root.

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Dihedral Wing

Dihedral is when the Wing tip is of higher angle of incidence than wing root. It increases Lateral Stability.

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Anhedral Wing

Anhedral is when wing tip is of lower angle of incidence than wing root. It decreases Lateral Stability